<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
<html lang="en">
<head>
	<meta http-equiv="Content-Type" content="text/html;charset=UTF-8">
	<title>iframe</title>
	<style type="text/css">
		.box{
			width: 100%;
			height: 600px;
			background: blue url() 0 0 no-repeat;
		}
		.left{
			width: 20%;
			height: 600px;
			background: red url() 0 0 no-repeat;
			float: left;

		}
		.right{
			width: 80%;
			height: 600px;
			background: yellow url() 0 0 no-repeat;
			float: right;

		}
		.xbs-frame{
			width: 100%;
			height: 600px;
		}

	</style>
</head>
<body>
	<div class="box">
		<div class="left">
			<a href="http://www.baidu.com" target="xbs">百度</a>
			<a href="http://www.so.com" target="xbs">360</a>
			<a href="http://www.sogou.com" target="xbs">搜狗</a>
			<a href="http://www.xuebingsi.com" target="xbs">学并思</a>
		</div>
		<div class="right">
			<iframe class="xbs-frame" src="http://www.xuebingsi.com" name="xbs" frameborder="0"></iframe>
		</div>
	</div>
</body>
</html>